期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2005
卷号：XXXVI-8/W27
出版社：Copernicus Publications
摘要：Several types of commercial sensor platforms exist for data acquisition in urban terrain. But when it comes down to purchasing data for a particular purpose, a mismatch between level of detail, age of information and price of data emerges. High resolution images that have an age of less than one week are not available at any reasonable price. Such data will be important to generate up to date city models with a high level of detail for various applications. Current research begins to focus on the computation of sensor trajectories from video sequences in real time which will lead to fast "structure from motion" and finally to the fully automatic generation of city models in very short time. In order to acquire suitable input data for such a processing chain, we have chosen to equip a small remote controlled model aircraft with a video camera. This paper will give a detailed overview of the system, report some experiences we had with a first setup, outline the processing chain and present preliminary results we obtained from the first video sequences
